Pile for sheet-iron



(No Model.)

D. B. OLIVER,

PILE FOR SHEET IRON. No. 310,711. Patented Jan. 13, 1885.

DAVID B. OLIVER, OF PITTSBURG, PENNSYLVANIA.

PILE FOR SHEET lRON.

SPECIFICATION forming part of Letters Patent No. 310,711, dated January 13, 1885.

Application filed November 10, 1884. (No model.)

To all whom it may concern.-

Be it known that I, DAVID B. OLIVER, of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Piles for Making Sheet and Plate Iron; and I do hereby declare the following to be a full, clear, and exact description thereof.

Heretofore it has been a common practice to make piles for sheet or plate iron of longitudinal bars or plates, with transverse bars or plates laid horizontally between them; but I have found that such practice is objectionable for two reasons: first, because the pile so made is so close in its structure that the center frequently does not become properly heated, and when the pile is rolled out into a plate it develops black and imperfectly-welded spots, which imperfections reduce the value of the product, and in some cases render it unfit for use; second, the middle or transverse bars, be ing placed edge to edge, do not always Weld perfectly together, especially when the center of the pile is insufficiently heated, as before stated. To obviate these difficulties is the ob ject of my improvement, in describing which I will refer to the accompanying drawings, in which Figure 1 is a side View, and Fig. 2 isa perspective view, of my improved pile for sheet or plate metal.

Pilesfor making plate metal are usually of considerable size, weighing in many instances a thousand pounds, and upward, the size,however, depending upon the size of the desired product.

In constructing my improved pile I make use of a bottom plate,1, having the length and width of the pile. Upon this plate I make a second layer, consisting of several longitudinal bars or plates 2. Upon the ends of the second layer, 2, I place one or more transverse bars, 3, in a horizontal position, and between these end bars, 3,1 place in an angling position a sufficient number of transverse bars, 4, to fill the space, one corner of each of said bars 4.- resting upon the layer 2, and the other corner resting upon the adjacent angling-bar, 4, except the one at one end of the pile, which rests upon or against the edge or edges of the bars 3. On top of the layer of diagonallyplaced transverse bars 4 and end bars, 3, I place a layer, 5, similar to the layer 2, and on top of that a plate, 6, similar to the plate 1..

If it is desired, or is more convenient, the positions of the plates 1 and 6 and layers 2 and 5 may be transposed, the latter being placed on the outside of the plates. One of the layers may be omitted either at the top or bottom, or both. In the same manner the top and bottom layers, 1 and 6, may be composed of two or more pieces, which, however, it is preferred should break joint with the pieces of the layers 2 and 5.

It will be noticed that the arrangement of the center bars, 4., leaves the center of the pile open, so that the heat of the reheating-furnace can obtain access to the center of the pile and to the inner sides of the adjacent layers,whereby the uniform and proper heating of the pile is effected.

The arrangement of the bar-s4 so their edges overlap each other insures the proper welding up of the center of the pile when it is passed through the rolls.

Practical experience with the use of my improvement has demonstrated that it effects a large saving of time, both in heating and in rolling, and that the product is not liable to the defects experienced in the use of the former pile.

In making a large pile there may be more than one row of the anglingly-arranged bars 4,and,ifdesired,a layer of scrap may be spread or placed between two or more of the other layers, as is practiced with many piles of various forms.

What I claim as my invention, and desire to secure by Letters Patent, is

A pile for making sheet or plate metal, consisting of longitudinal top and bottom layers, transverse horizontal end pieces interposed between the top and bottom layers, and trans verse diagonally-placed center pieces, substantially as and for the purposes described. 5

In testimony whereof I have hereunto set my hand this 7th day of November, A. D. 1884. 7

DAVID B. OLIVER.

Witnesses:

W. B. Gonwnv, THOMAS B. Kenn. 

